A total of 56,807 electrocardiagrams from 39,408 patients attending Groote Schuur Hospital, Cape Town, during the 10 years 1952 - 61 has been analysed in order to determine the interracial incidence of different forms of heart disease.

A double-blind crossover study of the preventive effect on anginal attacks of prenylamine lactate in 30 patients with angina pectoris is reported. A combination of subjective and objective assessment was utilized.